Athanas rhymes with:
americana's, americanas, anna's, annas, arianna's, avana's, bananas, banas, bandanas, briana's, brianna's, cabanas, canas, diana's, ganas, ghana's, hanas, hanna's, hannahs, havana's, humana's, indiana's, janas, llanas, louisiana's, montana's, o'canas, ocanas, oksana's, panas, planas, savannas, susquehanna's, tropicana's
Athanas sounds like:
adam's, adamcik, adamczak, adamczyk, adamec, adamek, adames, adamik, adamkus, adamowicz, adams, adams', adams's, adamski, addams, adding, additions, admonish, admonishes, adonis, aetna's, aiding, atencio, athanassiou, athans, athenaios, athenians, athens, atienza, atomic, atoms, attaining, attains, attanasio, audience, audience's, audiences, auditing, auditioning, auditions, autonomic, autonomous, autumn's, awaiting